It was found Ceph versions before 13.2.4 that authenticated ceph users with read only permissions could steal dm-crypt encryption keys used in ceph disk encryption.
lists.opensuse.org/opensuse-security-announce/2019-04/msg00100.html
access.redhat.com/errata/RHSA-2019:2538
access.redhat.com/errata/RHSA-2019:2541
bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14662
ceph.com/releases/13-2-4-mimic-released
lists.debian.org/debian-lts-announce/2019/03/msg00002.html
lists.debian.org/debian-lts-announce/2021/08/msg00013.html
usn.ubuntu.com/4035-1/